If you're into sci-fi or movie kits, Moebius Models usually comes up pretty quickly when you're looking for something different for sale. Their lineup leans heavily into licensed subjects, with kits that are built more for display than heavy modification.
The detail and proportions tend to be a step up from typical entry-level kits, which is why they show up so often in finished display builds. You can find more in model kits when adding something new to the bench.